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MC74HC125A 데이터 시트보기 (PDF) - ON Semiconductor
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MC74HC125A
Quad 3−State Noninverting Buffers
ON Semiconductor
MC74HC125A Datasheet PDF : 8 Pages
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MC74HC125A, MC74HC126A
SWITCHING WAVEFORMS
tr
INPUT A
tPLH
OUTPUT Y
90%
50%
10%
90%
50%
10%
tTLH
Figure 1.
tf
VCC
GND
tPHL
tTHL
OE (HC125A)
OE (HC126A)
OUTPUT Y
OUTPUT Y
50%
50%
tPZL tPLZ
50%
tPZH tPHZ
50%
Figure 2.
VCC
GND
VCC
GND
HIGH
IMPEDANCE
10%
VOL
90%
VOH
HIGH
IMPEDANCE
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 k
Ω
CL *
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ and tPZH.
*Includes all probe and jig capacitance
Figure 3. Test Circuit
*Includes all probe and jig capacitance
Figure 4. Test Circuit
VCC
OE
A
Y
HC125A
(1/4 OF THE DEVICE)
VCC
OE
A
Y
HC126A
(1/4 OF THE DEVICE)
http://onsemi.com
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